Home / 156,154.83-215,493.73-84,534.85

Finding the Fourth Proportional to 156,154.83, 215,493.73 and 84,534.85

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Solution

The fourth proportional to 156,154.83, 215,493.73 and 84,534.85 is: 116,658.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,154.83 : 215,493.73 = 84,534.85 : x
  2. Step 2: Convert to fraction form
    156,154.83/215,493.73 = 84,534.85/x
  3. Step 3: Cross multiply
    156,154.83x = 215,493.73 × 84,534.85
  4. Step 4: Simplify right side
    156,154.83x = 18,216,728,641.35
  5. Step 5: Solve for x
    x = 18,216,728,641.35/156,154.83
  6. Step 6: Final answer
    x = 116,658.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.